From here.

From here.

The is a method to get the original apk file after you installed it on an Android phone before. From here and here.

Previously I used “unetbootin“ to do such thing. However today I find it doesn’t work since my USB drive doesn’t show up in the “USB Drive” dropdown list. So I want to find a Linux command which can do the same thing. I find this and here is how to do it.

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.

Here is an example how to use it. From here and here.

“piexifjs“ is a node.js npm library which can be used to read and write Exif data in image files.

From here and here.

The IK Analysis plugin integrates Lucene IK analyzer (http://code.google.com/p/ik-analyzer/) into elasticsearch, support customized dictionary.

This is a guide how to use ElasticSearch with Python and Jupyter.

To make the Jupyter works on my environment, I want to create a “miniconda” virtual environment, which caused error with “pyenv”. Here is the instructions how to make it work.